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Product Overview: 742A Standard Resistor
Provides temperature characterization corrections
Fluke's 742A Resistance Standard is a working standard for use in precision resistor calibration. A calibration correction data sheet is provided with the standard resistor, and the corrections in the table are given at 0.5°C temperature intervals, using which the uncertainty can be reduced.
Used in air, no need to use an oil bath
The 742A can be used in air without the use of a troublesome oil bath. Its temperature stability allows it to operate within a temperature range of 18°C to 28°C.
Compact and robust
The 742A is compact, rugged and easy to use. Resistance changes due to temperature and mechanical vibration are greatly minimized.
The 742 standard resistors include 12 resistance values from 1Ω to 19MΩ.
- Provides temperature characterization corrections
- Airborne use, no oil bath required
- compact and sturdy
Product Specification: 742A Standard Resistor
| Main technical indicators | ||
| 12 values from 1 Ω to 19 MΩ in x1 and x1.9 sequence | One-year technical indicators: | ±4 ppm |
| operating temperature | 18-28°C | |
| Storage temperature | 0-40°C | |
| Return difference (hysteresis) | 23°C-18°C-23°C Cycles. | Negligible resistance offset |
| 23°C-28°C-23°C Cycles. | Negligible resistance offset | |
| 23°C-0°C-23°C Cycles. | < 2 ppm Resistance Offset | |
| 23°C-40°C-23°C Cycles. | < 2 ppm Resistance Offset | |
| sizes | 8.6 cm H x 10.5 cm W x 12.7 cm D (3.4 in H x 4.15 in W x 5 in D) | |
| weights | .68 kg to .91 kg (depending on model) | |
Model: 742A Standard Resistor
742A-1
1Ω Resistance Standard
742A-1.9
1.9Ω Resistance Standard
742A-10
10Ω Resistance Standard
742A-25
25Ω Resistance Standard
742A-100
100Ω Resistance Standard
742A-1k
1 kΩ resistance standard
742A-10k
10 kΩ resistance standard
742A-19k
19 kΩ resistance standard
742A-100k
100 kΩ resistance standard
742A-1M
1MΩ Resistance Standard
742A-10M
10 MΩ Resistance Standard
742A-19M
19 MΩ Resistance Standard
